Improvement in bench-hook oe dog



@uitrit tatrs atrut @ffice CHARLES T. CRANE, or LOWELL, MASSACHUSETTS.

Letters Patent No. 65,060, (lated May 28, 1867 antedated Mag] 19, 1867.

IMPROVEMENT IN BENCH-HOOK 0R DOG.

TO ALL WHOM IT MAY CONGERN:

Be it known that I, CHARLES T CRANE, of Lowell, in the county of Middlesex, and State of Massachusetts, have invented cert-ain new and useful improvements in Adjustable Bench-Hooks; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, and letters of reference marked thereon.

The nature of my invention consists inproviding an adjustable bench-hook or dog that can easily be adjusted and operated, as hereinafter set forth.

To enable others skilled in the art to make and use my invention, Iwill-proceed te describe its construction and operation.

Figure l represents a plan of my improved adjustable bench-hook or dog.

Figure 2 represents a side elevation of the same.

Figure 3 represents a section through A and B of fig. 1.

a represents the frame b, the socket for the spindle c, the thumb-screw d, the sliding spindle with hook e attached, j` the spiral spring, and g the projection for thumb-screw c.. Iiconstruct my adjustable bench-hook or dog in this or in any like'form. The frame a, with ease b and projection g, being furnished with a'square hole, h, and round hole z'. The spindle d, with hook e, being finished, is then passed through the square hole i, and then through the spiral spring f, which has previously been inserted in the ease 6 into the round hole z', where it is then fastened by a pin,j. A hole is then prepared for the reception of the thumb-screw c, in the projec; tion g, which, wheniinserted, the bench-hook is ready for use.

v Much diiiiculty is experienced b'y carpenters in keeping both ends of the board iirm, steady, and in its place while the same is being subjectrto the action of the workmans plane, for the want of a suitable instrument or hook, to hold the end opposite to the one held by the usual permanent hook, especially in jointing` the edges, where, to secure it rmly in position, not unfrequently the use of a vise has 'to be brought into service to hold the board While this operation is being performed, and oftentimes the workman is compelled to fasten the end with a nail or screw. Inl my improvement these difficulties are overcome and dispensed with by the novel arrangement, construction, and application of my adjustable hook tothat part of the board which has formerly not been secured. The length of the hoard or piece of wood intended to be planed having been obtained,`the frame a, with hook e, is set and fastened to the bench by means of the thumb-screw c, a little minus the length ofthe board, from the permanent hook. Then one end of the board is placed against the hook e, pressed back suiliciently to let the permanent hook catch theother end.v Then, while the board is undergoing the planing operation, the board is gradually forced forward against and on to the permanent hook. At the same time the adjustable hook e follows up, by means of the spiral springf, correspondingly, thus keeping the board rm, steady, and in its place.

.I What I claim as my invention, and desire to secure by Letters Patent, is

'I claim a bench-hook consisting of a frame, a, socket b for the sliding spindle d, with hook e attached, and springf, all as mechanically arranged for the purpose heroin described, and the manner fully set forth.

CHARLES T. CRANE.

Witnesses:

ABIEL PEVEY, G. E. PEVEY. 

